diff --git a/src/test/unit/platform.h b/src/test/unit/platform.h
index e49b8dcf75..c15ce376a9 100644
--- a/src/test/unit/platform.h
+++ b/src/test/unit/platform.h
@@ -46,3 +46,5 @@ typedef struct
 } TIM_TypeDef;
 
 typedef enum {DISABLE = 0, ENABLE = !DISABLE} FunctionalState;
+
+typedef enum {TEST_IRQ = 0 } IRQn_Type;